Rajio seizō kōgyō ni okeru nikkeru
Subtitle: Nickel in the radio industry
Series: Tokutei kōgyōbetsu gijutsu ihō = -- Technical information on specific industries -- BB-2; Tokutei kōgyōbetsu gijutsu ihō -- BB-2.
Publisher: Nihon Nikkeru Jihōkyoku
Published: 1938
Place of publication: Tōkyō
Language: jpn
Number of pages: 52
Other titles: Nickel in the radio industry
Notes: Cover title.